Snackbars provide brief feedback about an operation through a message at the bottom of the screen.
Snackbars contain a single line of text directly related to the operation performed. They may contain a text action, but no icons.
Only one snackbar may be displayed at a time. Each snackbar may contain a single action, neither of which may be "Dismiss" or "Cancel".
Snackbars animate upwards from the bottom edge of the screen.